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Documentation Index

Fetch the complete documentation index at: https://docs.launchmystore.io/llms.txt

Use this file to discover all available pages before exploring further.

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Get Metafield by ID

This endpoint is available on the Admin API (merchant JWT) only. It is not exposed to OAuth-scoped apps. Apps must use GET /api/v1/metafields.json with namespace + key (or ownerType + ownerId) filters instead.
Returns a single metafield by its UUID. Used by the merchant admin and by TeamInfra’s resource detail editors.

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Request

curl -X GET "https://api.launchmystore.io/metafields/<id>" \
  -H "Authorization: Bearer <merchant-jwt>"

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Auth

Merchant JWT with one of: MERCHANT, STAFF_ADMIN, SUPER_ADMIN, MANAGER. The metafield must belong to the merchant’s store.

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Path parameters

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id
string
required
The metafield UUID.

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Response

{
  "status": 200,
  "state": "success",
  "data": {
    "id": "e607f43e-9251-451e-a45c-38bf28d61154",
    "namespace": "custom",
    "key": "warranty_years",
    "value": 5,
    "raw_value": "5",
    "type": "number_integer",
    "owner_type": "product",
    "owner_id": "94995c07-e8a5-43f2-9d1a-18ccf8199adf",
    "app_id": null,
    "created_at": "2026-05-09T13:32:53.135Z",
    "updated_at": "2026-05-09T13:32:53.135Z"
  }
}

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How apps should look up a single metafield

Use the list endpoint with exact filters — the unique constraint (storeId, ownerType, namespace, key, ownerId) guarantees one row max: 
curl -G "https://api.launchmystore.io/api/v1/metafields.json" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  --data-urlencode "ownerType=product" \
  --data-urlencode "ownerId=<productId>" \
  --data-urlencode "namespace=custom" \
  --data-urlencode "key=warranty_years"
Returns at most one item under data.metafields[0].

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Error codes

CodeDescription
UNAUTHORIZEDInvalid or missing JWT
FORBIDDENWrong store / insufficient role
NOT_FOUNDMetafield does not exist or belongs to another store